{"id":1755,"date":"2010-07-26T16:38:51","date_gmt":"2010-07-26T09:38:51","guid":{"rendered":"http:\/\/www.saigonstereo.com\/home\/?p=1755"},"modified":"2015-07-17T12:21:02","modified_gmt":"2015-07-17T05:21:02","slug":"usher-s-520-khong-so-sao-biet","status":"publish","type":"post","link":"https:\/\/www.saigonstereo.com\/home\/usher-s-520-khong-so-sao-biet\/","title":{"rendered":"USHER S-520 \u2013 \u201cKh\u00f4ng s\u1edd sao bi\u1ebft\u201d"},"content":{"rendered":"

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HFVN – T\u00f4i thu\u1ed9c tu\u00fdp ng\u01b0\u1eddi \u01b0a \u201cl\u1ecd m\u1ecd\u201d, lu\u00f4n \u0111\u1ec1 cao kh\u1ea9u hi\u1ec7u \u201ctr\u0103m nghe kh\u00f4ng b\u1eb1ng m\u1ed9t th\u1ea5y \u2013 tr\u0103m ng\u00f3 kh\u00f4ng b\u1eb1ng m\u1ed9t s\u1edd\u201d. \u0110\u1ec3 \u0111\u00e1nh s\u1ea3n ph\u1ea9m c\u1ee7a Usher, t\u00f4i ch\u1ecdn m\u1ed9t \u0111\u00f4i loa c\u00f3 t\u1ea7m gi\u00e1 trung b\u00ecnh trong d\u00f2ng bookshelf. \u0110i\u1ec1u kh\u00e1 ng\u1ea1c nghi\u00ean l\u00e0 khi bi\u1ebft \u00fd \u0111\u1ecbnh c\u1ee7a t\u00f4i, Usher \u0111\u1ec1 ngh\u1ecb t\u00f4i ch\u1ecdn s\u1ea3n ph\u1ea9m m\u1edbi nh\u1ea5t v\u00e0 c\u0169ng l\u00e0 r\u1ebb nh\u1ea5t c\u1ee7a h\u1ecd. M\u1ed9t c\u00f4ng ty c\u00f3 nh\u1eefng s\u1ea3n ph\u1ea9m gi\u00e1 g\u1ea7n 20.000USD l\u1ea1i ti\u1ebfn c\u1eed 1 \u0111\u00f4i loa ch\u1ec9 c\u00f3 gi\u00e1 450USD \u2013 \u0111i\u1ec1u n\u00e0y l\u00e0m cho t\u00f4i r\u1ea5t t\u00f2 m\u00f2 v\u00e0 h\u00e1o h\u1ee9c!<\/p>\n

CH\u1ea4T L\u01af\u1ee2NG L\u00c1P R\u00c1P<\/strong>
\nKhi th\u00f9ng \u0111\u1ef1ng loa mang t\u00ean Usher Audio \u0111\u01b0\u1ee3c mang \u0111\u1ebfn tr\u01b0\u1edbc c\u1eeda nh\u00e0, t\u00f4i \u0111\u00e3 c\u1ea3m th\u1ea5y h\u01a1i nghi ng\u1ea1i v\u00ec tr\u00f4ng qu\u00e1 nh\u1ecf. Khi th\u1eed nh\u1ea5c n\u00f3 l\u00ean ph\u1ea3i n\u00f3i r\u1eb1ng t\u00f4i \u0111\u00e3 b\u1ecb s\u1ed1c, tuy 7kg kh\u00f4ng ph\u1ea3i l\u00e0 n\u1eb7ng nh\u01b0ng so v\u1edbi k\u00edch th\u01b0\u1edbc \u201ct\u00ed hon\u201d n\u00e0y th\u00ec c\u00f3 ngh\u0129a l\u00e0 b\u00ean trong n\u00f3 \u0111\u1eb7c k\u00edn. Nh\u01b0 v\u1eady, ho\u1eb7c nh\u00e0 s\u1ea3n xu\u1ea5t \u201c\u0111\u1ed5 th\u00eam ch\u00ec v\u00e0o trong th\u00f9ng\u201d ho\u1eb7c l\u00e0 ch\u00fang ta s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t \u0111\u00f4i loa kh\u00e1 \u201cd\u1eef\u201d trong tay.<\/p>\n

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V\u1edbi v\u1ecf ngo\u00e0i \u0111\u01b0\u1ee3c s\u01a1n \u0111en b\u00f3ng nh\u01b0 ph\u00edm \u0111\u00e0n d\u01b0\u01a1ng c\u1ea7m, c\u00e1c g\u00f3c c\u1ea1nh \u0111\u01b0\u1ee3c bo tr\u00f2n v\u1eeba ph\u1ea3i l\u00e0m cho Usher S-520 th\u1ef1c s\u1ef1 \u0111\u1eb9p. C\u00e1c m\u1ed1i gh\u00e9p tr\u00ean th\u00f9ng loa \u0111\u01b0\u1ee3c gi\u1ea5u ph\u00eda sau m\u1eb7t l\u01b0\u1edbi tr\u00ean n\u1ec1n \u0111en v\u00e0 kh\u00f3 th\u1ea5y h\u01a1n nhi\u1ec1u so v\u1edbi lo\u1ea1i v\u1ecf g\u1ed7 (c\u00f3 gi\u00e1 340USD). \u0110\u00f4i loa n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ed1i x\u1ee9ng v\u1edbi nhau theo t\u1eebng \u0111\u00f4i, m\u1ed9t th\u00f9ng loa c\u00f3 c\u1ed5ng tho\u00e1t h\u01a1i n\u1eb1m ph\u00eda b\u00ean ph\u1ea3i v\u00e0 th\u00f9ng c\u00f2n l\u1ea1i s\u1ebd c\u00f3 l\u1ed7 tho\u00e1t h\u01a1i b\u00ean tr\u00e1i. Loa tr\u1ea7m 5 \u201cc\u00f3 m\u00e0ng trong su\u1ed1t, v\u00ec v\u1eady c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong nh\u01b0: m\u00e0ng nh\u00fan v\u00e0 l\u1edbp v\u1eadt li\u1ec7u c\u00e1c \u00e2m. M\u0169i ch\u1ed1t pha \u1edf gi\u1eefa loa tr\u1ea7m, kh\u00f4ng ph\u1ea3i ch\u1ec9 \u0111\u1ec3 trang tr\u00ed m\u00e0 c\u00f3 t\u00e1c d\u1ee5ng th\u1ef1c s\u1ef1. Loa t\u00e9p 1 \u201c\u0111\u01b0\u1ee3c che ch\u1eafn b\u1edfi 1 m\u00e0ng l\u01b0\u1edbi m\u1ecbn, \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u1ec7ch 1 b\u00ean \u0111\u1ec3 ch\u1eeba kho\u1ea3ng tr\u1ed1ng cho ng\u00f5 tho\u00e1t h\u01a1i.
\nV\u1eabn h\u01a1i nghi ng\u1edd v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng trong b\u1edfi c\u00e1i gi\u00e1 \u201cqu\u00e1 khi\u00eam t\u1ed1n\u201d, v\u00ec v\u1eady m\u1ed7i chi ti\u1ebft c\u1ee7a Usher S-520 \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00f4i ki\u1ec3m tra h\u1ebft s\u1ee9c k\u1ef9 l\u01b0\u1ee1ng. C\u1ee7 loa \u0111\u01b0\u1ee3c ch\u1eafn t\u1eeb, c\u00e1c v\u00edt gi\u1eef loa t\u00e9p v\u00e0 loa tr\u1ea7m \u0111\u1ec1u c\u00f3 \u1ed1c kim lo\u1ea1i c\u1ea5y trong th\u00f9ng, c\u1ee7 loa t\u1ea7n s\u1eed d\u1ee5ng linh ki\u1ec7n t\u1ed1t. N\u00f3i chung, chi ti\u1ebft \u0111\u1ec1u \u201ctr\u00ean c\u1ea3 mong \u0111\u1ee3i\u201d, nh\u1eefng linh ki\u1ec7n m\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 ngh\u0129 s\u1ebd hi\u1ec7n di\u1ec7n \u1edf b\u1ed9 loa c\u00f3 t\u1ea7m gi\u00e1 d\u01b0\u1edbi 500USD. T\u00f4i ch\u1ec9 ng\u1ea1i cho Usher v\u00ec h\u1ecd c\u00f3 th\u1ec3 b\u1ecb l\u1ed7 v\u1ed1n khi l\u00e0m ra c\u00e1c s\u1ea3n ph\u1ea9m v\u1edbi c\u00e1c linh ki\u1ec7n n\u00e0y!<\/p>\n

C\u00e1c c\u1ea1nh c\u1ee7a th\u00f9ng loa \u0111\u01b0\u1ee3c d\u00e1n c\u1ed1 \u0111\u1ecbnh b\u1eb1ng keo v\u00e0 b\u00ean trong \u0111\u01b0\u1ee3c l\u00f3t b\u1eb1ng v\u1eadt li\u1ec7u c\u00e1c \u00e2m, \u0111\u00e1y th\u00f9ng l\u00f3t b\u00f4ng cotton m\u00e0u x\u00e1m \u0111\u01b0\u1ee3c d\u00e1n s\u00e1t v\u1ecf loa, bao xung quanh loa tr\u1ea7m v\u00e0 ph\u1ee7 k\u00edn m\u1eb7t sau. Xung quanh loa t\u00e9p \u0111\u01b0\u1ee3c l\u00f3t b\u1eb1ng x\u1ed1p t\u1ed5ng h\u1ee3p m\u00e0u tr\u1eafng. M\u1ed7i c\u1ee7 loa \u0111i\u1ec1u \u0111\u01b0\u1ee3c l\u00f3t 1 l\u1edbp \u0111\u1ec7m cao \u1edf gi\u1eefa c\u1ee7 loa v\u00e0 th\u00f9ng loa nh\u1eb1m gi\u1ea3m rung khi loa tr\u00ecnh di\u1ec5n. N\u00f3i t\u00f3m l\u1ea1i, k\u1ebfu c\u1ea5u c\u1ee7a Usher S-520 th\u1ee9c s\u1ef1 ngo\u00e0i t\u1ea7m gi\u00e1, c\u00f3 v\u1ebb kh\u00f3 tin nh\u01b0ng th\u1eadt s\u1ef1 l\u00e0 v\u1eady.<\/p>\n

X\u1ebeP \u0110\u1eb6T<\/strong>
\nS\u1eafp \u0111\u1eb7t m\u1ed9t \u0111\u00f4i loa bookshelf kh\u00f4ng ph\u1ea3i l\u00e0 qu\u00e1 kh\u00f3, th\u01b0\u1eddng ch\u1ec9 c\u1ea7n \u0111\u00f4i ch\u00e2n loa \u0111\u1ec3 \u0111\u1eb7t loa l\u00ean v\u00e0 x\u1ebfp \u1edf hai b\u00ean m\u00e0n t\u00ecnh TV, th\u1ebf l\u00e0 xong. Tuy nhi\u00ean c\u00f3 m\u1ed9t th\u1ee9 m\u00e0 d\u00e2n ch\u01a1i \u00e2m thanh th\u01b0\u1eddng th\u01b0\u1eddng tu\u00e2n theo khi ch\u1ecdn v\u1ecb tr\u00ed \u0111\u1eb7t loa l\u00e0 \u201ctam gi\u00e1c v\u00e0ng\u201d. \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ef1 s\u1eafp x\u1ebfp loa sao cho kho\u1ea3ng c\u00e1ch gi\u1eefa ng\u01b0\u1eddi nghe \u0111\u1ebfn \u0111\u00f4i loa gi\u1ed1ng nh\u01b0 m\u1ed9t tam gi\u00e1c \u0111\u1ec1u, sau \u0111\u00f3 b\u1ea1n xoay loa h\u01b0\u1edbng v\u00e0o b\u1ea1n. X\u1ebfp loa nh\u01b0 th\u1ec3 trong c\u00f3 v\u1ebb \u201cpro\u201d nh\u01b0ng t\u00f4i ngh\u0129, ki\u1ec3u s\u1eafp loa h\u00ecnh ch\u1eef V n\u00e0y c\u0169ng kh\u00f4ng ph\u00e1t huy h\u1ebft t\u00e1c d\u1ee5ng, nh\u1ea5t l\u00e0 khi b\u1ea1n mu\u1ed1n c\u00f9ng th\u01b0\u1edfng t\u1ee9c \u0111\u00f4i loa n\u00e0y v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00e1c.<\/p>\n

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T\u00f4i c\u00f3 kh\u00e1 nhi\u1ec1u kinh nghi\u1ec7m v\u1edbi vi\u1ec7 x\u1ebfp \u0111\u1eb7t v\u1ecb tr\u00ed ph\u00f2ng nghe v\u00e0 bi\u1ebft r\u1eb1ng, b\u1ea1n s\u1ebd kh\u00f4ng bao gi\u1edd c\u00f3 th\u1ec3 \u01b0\u1edbc \u0111o\u00e1n ch\u00ednh x\u00e1c cho \u0111\u1ebfn khi b\u1ea1n nhe th\u1eed. Th\u00f4ng th\u01b0\u1eddng c\u00e2u h\u1ecfi \u0111\u1ea7u ti\u00ean c\u1ee7a t\u00f4i khi l\u1ea5y \u0111\u00f4i loa ra kh\u1ecfi thn\u00f9ng l\u00e0 s\u1ebd \u0111\u1eb7t loa nh\u01b0 th\u1ebf n\u00e0o? (c\u00e1c c\u00f4ng tho\u00e1t h\u01a1i s\u1ebd n\u1eb1m v\u1ec1 ph\u00eda b\u00ean ngo\u00e0i hay ph\u00eda trong? T\u00f4i \u0111\u00e3 th\u1eed c\u1ea3 hai\u00a0 c\u00e1ch v\u00e0 \u0111\u00f4i tau c\u1ee7a t\u00f4i th\u1ef1c s\u1ef1 kh\u00f4ng th\u1ec3 nh\u1eadn ra s\u1ef1 kh\u00e1c bi\u1ec7t nh\u01b0ng t\u00f4i \u0111\u00e3 \u0111\u1eb7t \u0111\u00f4i loa theo ki\u1ec3u c\u1ed5ng tho\u00e1t h\u01a1i n\u1eb1m b\u00ean ngo\u00e0i v\u00ec tr\u00f4ng n\u00f3 c\u00f3 v\u1ebb \u1ed5n h\u01a1n.<\/p>\n

Usher S-520 \u0111\u01b0\u1ee3c t\u00f4i \u0111\u1eb7t tr\u00ean m\u1ed9t \u0111\u00f4i ch\u00e2n v\u1edbi \u0111\u1ed9 cao c\u1ee7a loa ngang v\u1edbi t\u1ea7m hai ng\u01b0\u1eddi ng\u1ed3i. \u0110\u1ec3 ph\u1ed1i gh\u00e9p, t\u00f4i d\u00f9ng ampli hybrid Opera Consonance Reference 150 v\u00e0 CD player CD120 Linear c\u00f9ng nh\u00e3n hi\u1ec7u. V\u1edbi c\u00f4ng su\u1ea5t 200W m\u1ed7i k\u00eanh, t\u00f4i ho\u00e0n to\u00e0n y\u00ean t\u00e2m v\u1ec1 vi\u1ec7c ph\u1ed1i gh\u00e9p c\u1ee7a ampli n\u00e0y v\u1edbi b\u1ea5t k\u1ef3 \u0111\u00f4i loa n\u00e0o. Khi ch\u1ea1y r\u00e0, \u0111i\u1ec1u l\u00e0m t\u00f4i ng\u1ea1c nhi\u00ean l\u00e0 khi loa \u0111ang tr\u00ecnh di\u1ec5n, th\u1eadm ch\u00ed \u1edf m\u1ee9c \u00e2m l\u01b0\u1ee3ng l\u1edbn v\u1eabn c\u00f3 r\u1ea5t \u00edt kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c \u0111\u1ea9y ra kh\u1ecfi c\u1ed5ng tho\u00e1t h\u01a1i, do v\u1eady ti\u1ebfng \u1ed3n do kh\u00ed tho\u00e1t ra th\u1ef1c s\u1ef1 kh\u00f4ng \u0111ang k\u1ec3.<\/p>\n

NGHE TH\u1eec<\/strong>
\nSau khi nghe th\u1eed v\u00e0i b\u1ea3n nh\u1ea1c quen thu\u1ed9c, n\u1ebfu ch\u1ec9 c\u1ea7n m\u00f4 t\u1ea3 ng\u1eafn g\u1ecdn v\u1ec1 ch\u1ea5t \u00e2m c\u1ee7a Usher S-520, c\u00f3 th\u1ec3 m\u00f4 t\u1ea3 b\u1eb1ng t\u1eeb \u201cs\u1ea1ch\u201d. T\u00f4i \u0111\u00e3 t\u1eebng s\u1edf h\u1eefu nhi\u1ec1u \u0111\u00f4i loa bookshelf nh\u01b0ng ch\u01b0a c\u00f3 \u0111\u00f4i loa n\u00e0o th\u1ebf hi\u1ec7n chi ti\u1ebft v\u00e0 trong tr\u1ebbo nh\u01b0 S-520. C\u00e1c b\u00e0i nh\u1ea1c quen thu\u1ed9c m\u00e0 t\u00f4i th\u01b0\u1eddng nghe d\u01b0\u1eddng nh\u01b0 \u201ct\u01b0\u01a1i\u201d h\u01a1n, xu\u1ea5t hi\u1ec7n nhi\u1ec1u chi ti\u1ebft v\u00e0 c\u00f3 \u00e2m h\u00ecnh s\u00e2u r\u1ed9ng h\u01a1n l\u00e0 t\u00f4i t\u1eebng \u0111\u01b0\u1ee3c nghe tr\u01b0\u1edbc \u0111\u00e2y.<\/p>\n

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Khi th\u1eed v\u1edbi b\u00e0i Close your eyes c\u1ee7a Maggie Reilly, \u00e2m thanh trung th\u1ef1c b\u00ean trong micro. V\u00e0 l\u00fac n\u00e0y, t\u00f4i b\u1eaft \u0111\u1ea7u tin r\u1eb1ng c\u00e1ch x\u1ebfp \u0111\u1eb7t loa c\u1ee7a t\u00f4i c\u0169ng r\u1ea5t hi\u1ec7u qu\u1ea3 \u0111\u1ed1i v\u1edbi S-520. Kh\u00f4ng c\u1ea7n ph\u1ea3i h\u01b0\u1edbng loa v\u00e0o trong ng\u01b0\u1eddi nghe, \u00e2m tr\u1ea7m \u1eabn ch\u1eb7t ch\u1ebd v\u00e0 ti\u1ebfng piano r\u1ea5t th\u1eadt. T\u00f4i c\u00f3 th\u1ec3 nghe v\u00e0 c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c ti\u1ebfng ph\u00edm \u0111\u00e0n c\u1ecd v\u00e0o d\u00e2y \u0111\u00e0n. Khi b\u1ea1n ch\u01a1i piano, c\u00e1c \u00e2m thanh n\u00e0y r\u1ea5t d\u1ec5 nh\u1eadn bi\u1ebft nh\u01b0ng khi ph\u00e1t l\u1ea1i qua d\u00e0n m\u00e1y, th\u01b0\u1eddng th\u00ec b\u1ea1n kh\u00f3 m\u00e0 nghe \u0111\u01b0\u1ee3c nh\u1eefng chi ti\u1ebft n\u00e0y m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.<\/p>\n

\u0110\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n v\u00e0 ch\u00ednh x\u00e1c h\u01a1n, t\u00f4i th\u1eed loa USHER S-520 v\u1edbi ampli xem phim \u0111a k\u00eanh t\u1ea7m trung Denon AVR-2307 v\u00e0 \u0111\u1ea7u \u0111\u1ecdc DVD Demon 3901. \u0110\u0129a \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 th\u1eed l\u00e0 DTS CD Diana Krall \u2013 Love Scenes. V\u1eabn bi\u1ebft r\u1eb1ng \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t CD hai k\u00eanh th\u00f4ng th\u01b0\u1eddng nh\u01b0ng t\u00f4i v\u1eabn cho n\u00f3 ph\u00e1t \u1edf ch\u1ebf \u0111\u1ed9 2 k\u00eanh t\u1ed5ng h\u1ee3p. Gi\u1ecdng h\u00e1t c\u1ee7a Diana Krall qua loa S-520 nh\u01b0ng \u0111ang vang trong kh\u00e1n ph\u00f2ng. M\u1ed7i kho\u1ea3ng l\u1eb7ng\u00a0 t\u1eeb n\u1ed1t nh\u1ea1c, t\u1eebng h\u01a1i th\u1edf, t\u1eebng ca t\u1eeb \u0111\u1ebfu r\u1ea5t hi\u1ec7n th\u1ef1c. S\u1ef1 th\u1ec3 hi\u1ec7n xu\u1ea5t s\u1eafc c\u1ee7a USHER S-520 ngay c\u1ea3 tr\u00ean d\u00e0n \u00e2m thanh xem phim c\u0169ng \u0111\u1ee7 \u0111\u1ec3 ch\u00fang ta kh\u00f4ng ph\u1ea3i lo ng\u1ea1i v\u1ec1 s\u1ef1 t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb ph\u1ed1i gh\u00e9p v\u1edbi S-520.<\/p>\n

THAY L\u1edcI K\u1ebeT<\/strong>
\nTuy r\u1ea5t kh\u00f3 t\u00ednh trong vi\u1ec7c nghe v\u00e0 l\u00fac \u0111\u1ea7u c\u0169ng kh\u00f4ng h\u1ee9ng th\u00fa v\u1edbi ch\u1ea5t \u00e2m h\u01a1i thi\u00ean s\u00e1ng c\u1ee7a Usher S-520, nh\u01b0ng sau \u0111\u00f3 t\u00f4i \u0111\u00e3 b\u1ecb thuuy\u1ebft ph\u1ee5c, n\u00f3 mang l\u1ea1i m\u1ed9t c\u1ea3m g\u00e1ic ho\u00e0n to\u00e0n m\u1edbi nh\u01b0ng kh\u00f4ng l\u1ea1 l\u1eafm. Ch\u1ea5t \u00e2m c\u1ee7a S-520 c\u00f3 s\u1ef1 h\u1ea5p d\u1eabn ng\u00e0y c\u00e0ng gia t\u0103ng theo th\u1eddi gian nghe ch\u00ednh l\u00e0 l\u00fd do m\u00e0 t\u00f4i c\u00f3 th\u1ec3 tin r\u1eb1ng m\u00ecnh \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c m\u1ed9t c\u1eb7p loa bookshelf ph\u00f9 h\u1ee3p.<\/p>\n

\"\"<\/p>\n

N\u1ebfu b\u1ea1n th\u1ef1c s\u1ef1 nghi\u00eam t\u00fac trong vi\u1ec7c t\u00ecm ki\u1ebfm cho m\u00ecnh m\u1ed9t \u0111\u00f4i loa bookshelf tr\u1ea7m trung, t\u00f4i khuy\u00ean b\u1ea1n n\u00ean ch\u1ea9n b\u1ecb v\u00e0i CD y\u00eau th\u00edch v\u00e0 t\u00ecm n\u01a1i \u0111\u1ec3 nghe th\u1eed v\u1edbi loa S-520, \u00edt nh\u1ea5t b\u1ea1n c\u0169ng s\u1ebd kh\u00f4ng th\u1ea5y l\u00e3ng ph\u00ed th\u1eddi gian cho vi\u1ec7c n\u00e0y. Tuy nhi\u00ean \u1edf t\u1ea7m gi\u00e1 d\u01b0\u1edbi 500USD, Usher S-520 th\u1ef1c s\u1ef1 kh\u00f3 t\u00ecm \u0111\u01b0\u1ee3c \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh. B\u1ea1n n\u00ean nghe th\u1eed m\u1ed9t s\u1ed1 \u0111\u00f4i loa c\u00f9ng t\u1ea7m gi\u00e1 tr\u01b0\u1edbc khi nghe th\u1eed S-520, v\u00e0 \u0111i\u1ec1u m\u00e0 t\u00f4i ngh\u0129 l\u00e0 b\u1ea1n s\u1ebd m\u00f3c v\u00ec \u0111\u1ec3 s\u1ee1 h\u1eefu c\u1eb7p loa S-520!<\/p>\n

TH\u00d4NG S\u1ed0 K\u1ef8 THU\u1eacT<\/strong>
\nLoa 2 \u0111\u01b0\u1eddng ti\u1ebfng:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 loa t\u00e9p 1\u201d\u00a0 (UA025-10)
\nLoa trung tr\u1ea7m 5\u201d (KSW2-5029B)
\n\u0110\u1ed9 nh\u1ea1y:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 86 dB @ 1 watt \/ 1m
\nTr\u1edf kh\u00e1ng:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8 ohm
\nD\u1ea3i t\u1ea7n \u0111\u00e1p \u1ee9ng (-3 dB):\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 52 Hz \u2013 20 kHz
\nC\u00f4ng su\u1ea5t t\u1ed1i \u0111a:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 50 W
\nT\u1ea7n s\u1ed1 t\u00e1ch:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 kHz
\nK\u00edch th\u01b0\u1edbc:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 18,0 x 26,5 x 30,0mm (R x S x C)<\/p>\n

Th\u00e1i Duy (DTTD)<\/strong><\/em><\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

HFVN – T\u00f4i thu\u1ed9c tu\u00fdp ng\u01b0\u1eddi \u01b0a \u201cl\u1ecd m\u1ecd\u201d, lu\u00f4n \u0111\u1ec1 cao kh\u1ea9u hi\u1ec7u \u201ctr\u0103m nghe kh\u00f4ng b\u1eb1ng m\u1ed9t th\u1ea5y \u2013 tr\u0103m ng\u00f3 kh\u00f4ng b\u1eb1ng m\u1ed9t s\u1edd\u201d. \u0110\u1ec3 \u0111\u00e1nh s\u1ea3n ph\u1ea9m c\u1ee7a Usher, t\u00f4i ch\u1ecdn m\u1ed9t \u0111\u00f4i loa c\u00f3 t\u1ea7m gi\u00e1 trung b\u00ecnh trong d\u00f2ng bookshelf. \u0110i\u1ec1u kh\u00e1 ng\u1ea1c nghi\u00ean l\u00e0 khi bi\u1ebft \u00fd \u0111\u1ecbnh…<\/p>\n","protected":false},"author":1,"featured_media":1756,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":[]},"categories":[12,15],"tags":[108],"class_list":["post-1755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-danh-gia-review","category-tin-tuc","tag-usher-audio","category-12","category-15","description-off"],"jetpack_publicize_connections":[],"yoast_head":"\nUSHER S-520 \u2013 \u201cKh\u00f4ng s\u1edd sao bi\u1ebft\u201d - SaigonStereo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.saigonstereo.com\/home\/usher-s-520-khong-so-sao-biet\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USHER S-520 \u2013 \u201cKh\u00f4ng s\u1edd sao bi\u1ebft\u201d - SaigonStereo\" \/>\n<meta property=\"og:description\" content=\"HFVN – T\u00f4i thu\u1ed9c tu\u00fdp ng\u01b0\u1eddi \u01b0a \u201cl\u1ecd m\u1ecd\u201d, lu\u00f4n \u0111\u1ec1 cao kh\u1ea9u hi\u1ec7u \u201ctr\u0103m nghe kh\u00f4ng b\u1eb1ng m\u1ed9t th\u1ea5y \u2013 tr\u0103m ng\u00f3 kh\u00f4ng b\u1eb1ng m\u1ed9t s\u1edd\u201d. \u0110\u1ec3 \u0111\u00e1nh s\u1ea3n ph\u1ea9m c\u1ee7a Usher, t\u00f4i ch\u1ecdn m\u1ed9t \u0111\u00f4i loa c\u00f3 t\u1ea7m gi\u00e1 trung b\u00ecnh trong d\u00f2ng bookshelf. \u0110i\u1ec1u kh\u00e1 ng\u1ea1c nghi\u00ean l\u00e0 khi bi\u1ebft \u00fd \u0111\u1ecbnh…\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.saigonstereo.com\/home\/usher-s-520-khong-so-sao-biet\/\" \/>\n<meta property=\"og:site_name\" content=\"SaigonStereo\" \/>\n<meta property=\"article:published_time\" content=\"2010-07-26T09:38:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-07-17T05:21:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.saigonstereo.com\/home\/wp-content\/uploads\/2014\/09\/7597.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"424\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"SaigonStereo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"SaigonStereo\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.saigonstereo.com\/home\/usher-s-520-khong-so-sao-biet\/\",\"url\":\"https:\/\/www.saigonstereo.com\/home\/usher-s-520-khong-so-sao-biet\/\",\"name\":\"USHER S-520 \u2013 \u201cKh\u00f4ng s\u1edd sao bi\u1ebft\u201d - 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